Online PHP editor | perf for taN2m

<?php $pivot = []; $n = 0; for ($i = 1; $i <= 100; $i++) { $pivot[$i] = []; } for($i = 1; $i <= 100; $n++) { $user = &$pivot[rand($i, 100)]; $rand = rand(0, 100); $random = $rand != $user ? $rand : $rand + 1; while(array_key_exists($random, $user)) { $random++; } $user[] = $random; if($n == 100) { $i++; $n = 0; } } foreach($pivot as $key => $piv) { echo "INSERT INTO `following_pivot` (`uid`, `fid`) VALUES "; foreach($piv as $pi) { echo "(", $key, ", ", $pi, ")"; if($pi !== end($piv)) { echo ","; } } echo ";"; } //print_r($pivot);

Version	System time (s)	User time (s)	Memory (MiB)
7.2.10	0.131	0.031	15.82
7.2.9	0.130	0.023	15.81
7.2.8	0.144	0.044	15.68
7.2.7	0.149	0.042	15.91
7.2.6	0.114	0.038	15.84
7.2.5	0.066	0.019	15.87
7.1.22	0.047	0.047	14.73
7.1.21	0.119	0.052	14.67
7.1.20	0.138	0.053	14.87
7.1.19	0.054	0.061	14.84
7.1.18	0.165	0.033	14.60
7.0.31	0.174	0.054	14.22
5.6.38	0.046	1.338	15.88
5.6.37	0.020	2.328	15.44

Version

System time (s)

User time (s)

Memory (MiB)

7.2.10

0.131

0.031

15.82

7.2.9

0.130

0.023

15.81

7.2.8

0.144

0.044

15.68

7.2.7

0.149

0.042

15.91

7.2.6

0.114

0.038

15.84

7.2.5

0.066

0.019

15.87

7.1.22

0.047

14.73

7.1.21

0.119

0.052

14.67

7.1.20

0.138

0.053

14.87

7.1.19

0.054

0.061

14.84

7.1.18

0.165

0.033

14.60

7.0.31

0.174

0.054

14.22

5.6.38

0.046

1.338

15.88

5.6.37

0.020

2.328

15.44